"Saddlebacking: the phenomenon of Christian teens engaging in unprotected anal sex in order to preserve their virginities." After attending the Purity Ball, Heather and Bill saddlebacked all night because she's saving herself for marriage.
And I know several women, who, in fact did this when they were younger and they did, in fact, say that they were still virgins afterwards. And I can think of one man too who felt this way and was proud of the fact that he was "virgin" on his wedding night.
Definition via Savage Love